Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
4.9
2.7
Journals
Symmetry
Special Issues
Advances in Materials Science with Symmetry/Asymmetry
share announcement

Advances in Materials Science with Symmetry/Asymmetry

A special issue of Symmetry (ISSN 2073-8994). This special issue belongs to the section "Chemistry: Symmetry/Asymmetry".

Deadline for manuscript submissions: closed (30 September 2022) | Viewed by 3830

Special Issue Editors

Prof. Dr. Hongbin Lu

E-Mail Website1 Website2
Guest Editor
School of Chemistry and Chemical Engineering, Nantong University, Nantong, China
Interests: anticorrosive coating; epoxy; acrylic; corrosion mechanisms; self-healing; Ti3C2Tx; stainless steel; proton exchange membrane fuel cell (PEMFC)
Special Issues, Collections and Topics in MDPI journals
Dr. Duan Bin

E-Mail Website
Guest Editor
School of Chemistry and Chemical Engineering, Nantong University, Nantong, China
Interests: electrocatalysts; water splitting; electrode materials; aqueous rechargeable batteries; nanoparticles; layered materials; intercalation; guest spices
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Symmetry and asymmetry are universal phenomena, from the macroscopic to microscopic scale. In materials science, symmetry and asymmetry have been found in fields such as crystallology, surface science, polymer science, and theoretical calculation, and have a great influence on the properties and applications of the materials. This Special Issue intends to present the latest advances in experimental and theoretical research related to symmetry/asymmetry in materials science. 

Potential topics include, but are not limited to:

  • Symmetry and asymmetry in electrocatalysis materials;
  • Symmetry and asymmetry in mesoporous materials;
  • Symmetry and asymmetry in layered materials;
  • Symmetry and asymmetry in coatings;
  • Symmetry and asymmetry in the theoretical calculation for materials;
  • Symmetry and asymmetry in polymers;
  • Symmetry and asymmetry in corrosion science;
  • Symmetry and asymmetry in surface science.

Dr. Hongbin Lu
Dr. Duan Bin
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Symmetry is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (2 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

17 pages, 654 KiB  
Article
Explicitly Modeling Stress Softening and Thermal Recovery for Rubber-like Materials
by Xiaoming Wang, Heng Xiao and Shengliang Lu
Symmetry 2022, 14(12), 2663; https://doi.org/10.3390/sym14122663 - 16 Dec 2022
Viewed by 1055
Abstract
Rubber-like materials exhibit stress softening when subject to loading–unloading cycles, i.e., the Mullins effect. However, this phenomenon can be recovered after annealing the previously stretched sample under a stress-free state. The aim of this paper is to establish a constitutive model with thermodynamic [...] Read more.
Rubber-like materials exhibit stress softening when subject to loading–unloading cycles, i.e., the Mullins effect. However, this phenomenon can be recovered after annealing the previously stretched sample under a stress-free state. The aim of this paper is to establish a constitutive model with thermodynamic consistency to account for the stress softening and thermal recovery. Towards this goal, (i) an explicit form of Helmholtz free energy can be found such that the restrictions from thermodynamic law can be satisfied; (ii) a compressible, multi-axial strain-energy function considering energy dissipation is proposed by introducing specific invariants; (iii) a unified shape function based on the symmetry property of the test data in a one-dimensional case with stress softening and thermal recovery is provided by introducing a weight variant; (iv) it is proven that the new potential can automatically reduce to the one-dimensional case, i.e., uniaxial tension, equal biaxial, or plane strain; (v) numerical results for model validation are exactly matched with classical experimental data. Full article
(This article belongs to the Special Issue Advances in Materials Science with Symmetry/Asymmetry)
►▼ Show Figures

Figure 1

19 pages, 9170 KiB  
Article
Evolution of Microstructure, Texture and Corrosion Properties of Additively Manufactured AlSi10Mg Alloy Subjected to Equal Channel Angular Pressing (ECAP)
by Przemysław Snopiński, Anna Woźniak, Dariusz Łukowiec, Krzysztof Matus, Tomasz Tański, Stanislav Rusz and Ondřej Hilšer
Symmetry 2022, 14(4), 674; https://doi.org/10.3390/sym14040674 - 24 Mar 2022
Cited by 12 | Viewed by 2327
Abstract
In the selective laser melting process (SLM), the region irradiated by the laser beam is melted and quickly solidified, forming solidification lines (laser scan tracks) with symmetrical shapes. Because of the unique (rapid) crystallization conditions, the subgrain structures, typically observed inside these solidification [...] Read more.
In the selective laser melting process (SLM), the region irradiated by the laser beam is melted and quickly solidified, forming solidification lines (laser scan tracks) with symmetrical shapes. Because of the unique (rapid) crystallization conditions, the subgrain structures, typically observed inside these solidification lines, could also have variable geometric symmetrical patterns, e.g., cellular, pentagonal, or hexagonal cellular. The existence of such distinctive microstructures in SLM-made alloys has a significant impact on their superior mechanical and corrosion properties. Thus, any modification of this symmetrical microstructure (due to post-processing) can degrade or improve the properties of SLM-fabricated alloys. This study presents the experimental results on the effects of heat treatment and ECAP on microstructure modification and corrosion behavior of SLM-fabricated AlSi10Mg alloy. Light microscopy, scanning electron microscopy (SEM), electron backscattered diffraction (EBSD), and X-ray diffraction (XRD) were used for microstructural analysis. The corrosion properties of the given samples were determined using open-circuit potential (OCP), potentiodynamic polarization, and electrochemical impedance spectroscopy (EIS) techniques. EBSD observations showed that the imposed strain resulted in an obvious reduction in grain size to ~1.42 µm and ~0.24 µm after the first and second ECAP passes, respectively. Electrochemical tests revealed that the corrosion resistance of the ECAP-processed AlSi10Mg alloy improved significantly, which was confirmed by a nobler Ecorr and lower Icorr values, and higher polarization resistance. The final results indicated that the strain-induced crystalline defects provided more nucleation sites for the formation of a denser and thicker oxide film, thus enhancing the corrosion resistance of the AlSi10Mg alloy. Full article
(This article belongs to the Special Issue Advances in Materials Science with Symmetry/Asymmetry)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-2
Back to TopTop